Home / 154,130.10-231,195.15-54,402.90

Finding the Fourth Proportional to 154,130.10, 231,195.15 and 54,402.90

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Solution

The fourth proportional to 154,130.10, 231,195.15 and 54,402.90 is: 81,604.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,130.10 : 231,195.15 = 54,402.90 : x
  2. Step 2: Convert to fraction form
    154,130.10/231,195.15 = 54,402.90/x
  3. Step 3: Cross multiply
    154,130.10x = 231,195.15 × 54,402.90
  4. Step 4: Simplify right side
    154,130.10x = 12,577,686,625.94
  5. Step 5: Solve for x
    x = 12,577,686,625.94/154,130.10
  6. Step 6: Final answer
    x = 81,604.35

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.